118 lines
3.3 KiB
Rust
118 lines
3.3 KiB
Rust
import std::option;
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import std::str;
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import std::io;
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import std::fs;
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import common::config;
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export test_props;
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export load_props;
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export is_test_ignored;
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type test_props = {
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// Lines that should be expected, in order, on standard out
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error_patterns: [str],
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// Extra flags to pass to the compiler
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compile_flags: option::t<str>,
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// If present, the name of a file that this test should match when
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// pretty-printed
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pp_exact: option::t<str>
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};
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// Load any test directives embedded in the file
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fn load_props(testfile: str) -> test_props {
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let error_patterns = [];
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let compile_flags = option::none;
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let pp_exact = option::none;
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iter_header(testfile) {|ln|
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alt parse_error_pattern(ln) {
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option::some(ep) { error_patterns += [ep]; }
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option::none. { }
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};
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if option::is_none(compile_flags) {
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compile_flags = parse_compile_flags(ln);
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}
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if option::is_none(pp_exact) {
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pp_exact = parse_pp_exact(ln, testfile);
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}
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};
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ret {
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error_patterns: error_patterns,
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compile_flags: compile_flags,
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pp_exact: pp_exact
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};
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}
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fn is_test_ignored(config: config, testfile: str) -> bool {
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let found = false;
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iter_header(testfile) {|ln|
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// FIXME: Can't return or break from iterator
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found = found || parse_name_directive(ln, "xfail-test");
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found = found || parse_name_directive(ln, xfail_target());
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if (config.mode == common::mode_pretty) {
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found = found || parse_name_directive(ln, "xfail-pretty");
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}
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};
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ret found;
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fn xfail_target() -> str {
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"xfail-" + std::os::target_os()
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}
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}
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fn iter_header(testfile: str, it: block(str)) {
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let rdr = io::file_reader(testfile);
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while !rdr.eof() {
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let ln = rdr.read_line();
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// Assume that any directives will be found before the first
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// module or function. This doesn't seem to be an optimization
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// with a warm page cache. Maybe with a cold one.
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if str::starts_with(ln, "fn")
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|| str::starts_with(ln, "mod") {
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break;
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} else { it(ln); }
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}
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}
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fn parse_error_pattern(line: str) -> option::t<str> {
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parse_name_value_directive(line, "error-pattern")
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}
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fn parse_compile_flags(line: str) -> option::t<str> {
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parse_name_value_directive(line, "compile-flags")
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}
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fn parse_pp_exact(line: str, testfile: str) -> option::t<str> {
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alt parse_name_value_directive(line, "pp-exact") {
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option::some(s) { option::some(s) }
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option::none. {
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if parse_name_directive(line, "pp-exact") {
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option::some(fs::basename(testfile))
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} else {
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option::none
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}
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}
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}
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}
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fn parse_name_directive(line: str, directive: str) -> bool {
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str::find(line, directive) >= 0
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}
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fn parse_name_value_directive(line: str,
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directive: str) -> option::t<str> {
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let keycolon = directive + ":";
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if str::find(line, keycolon) >= 0 {
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let colon = str::find(line, keycolon) as uint;
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let value =
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str::slice(line, colon + str::byte_len(keycolon),
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str::byte_len(line));
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log #fmt("%s: %s", directive,
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value);
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option::some(value)
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} else { option::none }
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}
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